Sydney head the betting to win their second consecutive Cup, ahead of Melbourne City ($4.00) and hold four-times more money than that club.

Rivals Avondale are $31 outsiders for the title.

Adelaide United ($4.50) is $1.40 to progress by beating Apia ($19), who is $6.00 to win the quarter-final clash.

Western Sydney Wanderers ($7.00) are $3.75 outsiders for their match with Melbourne City, rated $1.80 by the online bookmaker.

“Sydney has fared well in the quarter-final draw and look to have the easiest run through to the semi-finals. Avondale have done a super job to get this far, but this is by far their toughest test of the competition,’’ said sportsbet.com.au’s Will Byrne.